Toby Richards wrote an opinion article for NewsForge, claiming that for him, Linux won't get mainstream until Evolution - or another capable Outlook-like client - gets optimized and offers 100% compatibility with Exchange. In the comments section of Newsforge readers offered more reasons as to why Linux is not mainstream, offering a view on their needs. My take: While for my personal, home usage of Linux my needs are different, I agree with Toby that companies won't switch their desktops if full Exchange compatibility isn't reached and if Evolution stops being the memory beast it currently is.